Pi-Yun Chiang

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Ta Ya Hsiang, TW

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Patents Applicationslast 30 patents

Information Patent Application
Combination of Bicycle Rear Wheel Hub and Sprocket Set
- Publication number 20100260544
- Publication date Oct 14, 2010
- Pi-Yun Chiang
- B60 - VEHICLES IN GENERAL
Information Patent Application
Bicycle hub assembly
- Publication number 20100194183
- Publication date Aug 5, 2010
- Pi-Yun Chiang
- B60 - VEHICLES IN GENERAL